HYDROSENSE HS2410
Revision 5.0
P a g e 10 | 27
3.0 INSTALLATION
NOTICE
If any damage to the instrument is found, please notify an Arjay
Engineering representative as soon as possible prior to installation.
NOTICE
Qualified Personnel must undertake all installations.
WARNING
If the equipment is used in a manner not specified by the manufacturer,
the protection provided by the equipment may be impaired.
3.1
HYDROSENSE INSTALLATION NOTES
NOTICE
Read these notes before installation.
The system is comprised of two main components, the Sample Chamber and the Controller.
1) The Sample Chamber receives the flow sample from the process and outputs it to drain. The
chamber should be wall or rack mounted on a vertical and horizontal plane to allow a proper flow
through the sensing unit.
2) The Sample Chamber should be located close to the process to reduce the lag time of the sample
to the unit. This will offer more instantaneous readings and real time recording.
3) The outlet gravity flows to drain, and consideration of a close proximity to the drain is important.
Also, mount the unit where it is readily accessible for maintenance and periodic testing by manual
insertion of known samples.
4) If the process flow is not under pressure, the chamber should be mounted below the process level
so the sample can free flow down and through the unit. A pump may be used. The maximum input
pressure is 1000 psi although a reducing valve to less than 100 psi is recommended. The minimum
input flow rate is a continuous and stable 1 liter/minute. 3 – 5 liter/minute is recommended.
5) The inlet connection to the unit is a 3/8” female thread. A barb connection may be threaded to this
when flexible inlet tubing is used. Clear flexible 3/8” or 1/2” inlet tubing is suggested for the inlet
sample. This will provide a visible indication of the sample, as well as an indication of contaminant
build-up. To minimize the contamination in the tubing, Teflon lined tubing may be desirable.
Hazardous Locations or local regulations will dictate materials to be used.
NOTICE
Clear tubing should not be used outdoors where algae build-up from
sunlight is increased.
6) An on/off valve at the process is recommended to shut down the system for maintenance and/or
sample tube replacement. (An on/off valve is included within the unit for throttling flow. This can be
used for internal maintenance). A 3-way valve is included at the inlet for a fresh water input for
zeroing, cleaning, and testing.
7) The sample gravity flows out of the Sample Chamber. The outlet tube
must
only be installed in a
downward vertical or downward graded horizontal direction. Any excessive upward direction will
cause the sample to back up and could flood the sample chamber.
8) The outlet fitting is a 2” male thread. Do not reduce this size. This will cause a restriction and flood
the system.
